Examine source code of blue strawberries

{
  "theme": {
    "images": {
      "theme_frame": "bluestrawberries.jpg"
    },
    "colors": {
      "frame": "#f0ebeb",
      "tab_background_text": "#c4ecf5"
    }
  },
  "version": "2.0",
  "name": "blue strawberries",
  "manifest_version": 2,
  "description": "blue colored strawberriy pattern"
}